Blood Artist + Phyrexian Altar + Sifter of Skulls + Tenacious Dead

B identity

Commander legal

The 4 combo pieces

How to execute it

  1. Sacrifice Tenacious Dead to Phyrexian Altar, generating {B}.
  2. Sifter of Skulls, Blood Artist, and Tenacious Dead trigger; stack the triggers to resolve in that order.
  3. Sifter of Skulls generates an Eldrazi Scion token; sacrifice it to generate {1} (Blood Artist triggers again).
  4. Resolve two Blood Artist triggers, draining opponent for 2.
  5. Resolve the Tenacious Dead trigger, paying {1}{B} to return it to the battlefield from the graveyard.
  6. Repeat the sacrifice-recursion loop, draining opponent infinitely with Blood Artist triggers.

What the combo produces